Reduction of artefacts caused by hip implants in CT-based attenuation-corrected PET images using 2-D interpolation of a virtual sinogram on an irregular grid

Abdoli, Mehrsima; de Jong, Johan R; Pruim, Jan; Dierckx, Rudi A J O; Zaidi, Habib

doi:10.1007/s00259-011-1900-3

Scientific article

English

Reduction of artefacts caused by hip implants in CT-based attenuation-corrected PET images using 2-D interpolation of a virtual sinogram on an irregular grid

ContributorsAbdoli, Mehrsima; de Jong, Johan R; Pruim, Jan; Dierckx, Rudi A J O; Zaidi, Habib

Published inEuropean journal of nuclear medicine and molecular imaging, vol. 38, no. 12, p. 2257-2268

Publication date2011

Abstract

Metallic prosthetic replacements, such as hip or knee implants, are known to cause strong streaking artefacts in CT images. These artefacts likely induce over- or underestimation of the activity concentration near the metallic implants when applying CT-based attenuation correction of positron emission tomography (PET) images. Since this degrades the diagnostic quality of the images, metal artefact reduction (MAR) prior to attenuation correction is required.

Keywords

Algorithms
Artifacts
Hip Joint/radiography/radionuclide imaging
Hip Prosthesis
Humans
Image Enhancement/methods
Image Interpretation, Computer-Assisted/methods
Metals
Positron-Emission Tomography/methods
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed/methods

Affiliation entities

Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale

Research groups

Imagerie Médicale (TEP et TEMP) (542)

Funding

Swiss National Science Foundation - 21850499

Citation (ISO format)

ABDOLI, Mehrsima et al. Reduction of artefacts caused by hip implants in CT-based attenuation-corrected PET images using 2-D interpolation of a virtual sinogram on an irregular grid. In: European journal of nuclear medicine and molecular imaging, 2011, vol. 38, n° 12, p. 2257–2268. doi: 10.1007/s00259-011-1900-3

Article (Published version)

Identifiers

PID : unige:23504
DOI : 10.1007/s00259-011-1900-3
PMID : 21850499

Journal ISSN1619-7070

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Reduction of artefacts caused by hip implants in CT-based attenuation-corrected PET images using 2-D interpolation of a virtual sinogram on an irregular grid

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